Kenny Anderson grew up in LeFrak City, Queens, and had an army of recruiters tracking his skills by the sixth grade. Stephon Marbury, raised with six siblings in Coney Island, became “Starbury” and the subject of a book, “The Last Shot,” by the ninth. Both played for powerhouse city high schools (Archbishop Molloy, Lincoln), went to Georgia Tech on scholarship and left college diploma-less for the N.B.A. and its attendant fame and fortune.